ML20153F185

Summary of 980908 Meeting W/Bwrog Re Potential Loss of ECCS Capability Due to Clogging of Suction Strainers by Debris Generated During Loca.List of Attendees Encl.Info Discussed at Meeting Listed

ML20153F185
Person / Time
Issue date:	09/24/1998
From:	Skay D NRC (Affiliation Not Assigned)
To:	NRC (Affiliation Not Assigned)
References
NUDOCS 9809290035
Download: ML20153F185 (5)

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WASHINGTON, D.C. 20066 4 001

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September 24, 1998 VENDOR:

BOILING WATER REACTOR OWNERS GROUP (BWROG)

SUB. LECT:

SUMMARY

OF MEETING TO DISCUSS ISSUES RELATED TO THE POTENTIAL LOSS OF EMERGENCY CORE COOLING SYSTEM (ECCS) CAPABILITY DUE TO CLOGG!NG OF THE SUCTION STRAINERS BY DEBRIS GENERATED DURING A LOSS-OF-COOLANT ACCIDENT (LOCA)

On September 8,1998, the staff met with members of the BWROG strainer subcommittee to e

discuss issues related to the potentialloss of ECCS capability due to clogging of the suction strainers by debris generated during a LOCA. A list of the meeting attendees is enclosed.

The purpose of the meeting was to discuss the staff's review of the Utility Resolution Guidance-j

.(URG) submitted by the BWROG (General Electric Topical Report NEDO-32686 Revision 0,

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" Utility Resolution Guidance for ECCS Suction Stainer Blcckage"). The staff's safety evaluation i

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' (SE) was issued on August 20,1998. During the September 8,1998, meeting, the staff.

answered questions from the BWROG on the SE and provided information on its plans for closing NRC Bulletin 96-03 and related staff activities. The following information was discussed at the meeting:

. The BWROG noted that the discussion in the SE regarding damage pressure for certain types of insulation is incorrect. The staff agreed with the comments and willissue revised i

SE pages.

. The BWROG requested clarification of the staff's discussion of debris generation for calcium silicate insulation. The staff indicated that this issue needs to be addressed individually for each plant and that the staff is available to answer any plcnt-specific questions.

. The staff stated that the Advisory Committee for Reactor Safeguards had reviewed the SE and found the exceptions to the URG acceptable.

. :The statt discussed the preliminary audit plans and indicated that the audit plan will be

.provided to the BWROG for comment before it is implemented.

. - Regarding closure of NRC Bulletin 96-03, the staff stated that the individual TACs can be

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closed after licrAsees complete the reporting requirements by submitting a letter stating that all actions required by the NRC Bulletin 96-03 have been completed. The related issues in Generic Lotters (GL) 97-04 and 98-06 will be separated from NRC Bulletin 96-03. Open issues resulting from these GL should not impact closure of NRC Bulletin fJ 96-03. All actions related to NRC Bulletin 96-03, including completion of the audits and p

any followup inspection guidance, should be closed in spring 1999.

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t September 24, 1998,

The BWROG asked about the status of related NRC Bulletins 93-02 and 95-02. The plant-specific TACs for NRC Bulletin 93-02 are closed and the MPA is scheduled to be closed by October 1998. Plant-specific safety evaluations are being prepared for NRC Sulletin 95-02 and the scheduled closure date for the MPA is the end of 1998.

The staff ave a summary of current research activities related to ECCS strainer clogging D

for PWRs. This program is currently in the information gathering stage.

The BWROG asked about discussions between the industry and the NRC on the use of leak-before-break. The staff stated that it will meet with the industry before making a decision.

ORIG. SIGNED BY~S. BAILEY for Donna M. Skay, Project Manager

. Project Directorate ill-2 Division of Reactor Projects - Ill/IV Office of Nuclear Reactor Regulation

Enclosure:

List of Attendees.

cc: See next page l

DISTRIBUTION-e-mail:

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. The BWROG asked about the status of related NRC Bulletins 93-02 and 95-02. The plant-specific TACs for NRC Bulletin 93-02 are closed and the MPA is scheduled to be closed by October 1998. Plant-specific safety evaluations are being prepared for NRC 1

Bulletin 95-02 and the scheduled closure date for the MPA is the end of 1998.

The staff gave a summary of current research activities related to ECCS strainer clogging for PWRs. This program is currently in the information gathering stage.

The BWROG asked about discussions between the industry and the NRC on the use of leak-before-break. The staff stated that it will meet with the industry before making a decision.

4 nna ay,Pr ct ger J

Project Directorate lil-2 Division of Reactor Projects - lil/IV Office of Nuclear Reactor Regulation

Enclosure:

List of Attendees cc: See next page l

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3-cc:. Thomas J. Rausch, Chairman W. Glenn Warren Boiling Water Reactor Owners' Group Southem Nuclear / Georgia Power Commonwealth Edison Company E.I. Hatch Nuclear Plant Nuclear Fuel Services PO Box 1295 M/C B052

- 1400 Opus Place,4th Floor ETWill Birmingham, AL 35201 Downers Grove, IL 60515 '

Carl D. Terry Dennis B. Townsend Vice President, Nuclear Engineering GE Nuclear Energy Niagara Mohawk Power Corporation M/C 182 Nine Mile Point-2 175 Curtner Avenue PO Box 63 San Jose, CA 95125 Lycoming, NY 13093 Drew B. Fetters Thomas A. G:een -

PECO Energy GE Nuclear Energy Nuclear Group Headquarters-Mail Code 182 MC 62C-3

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175 Curtner Avenue 965 Chesterbrook Blvd.

San Jose, CA 95125 Wayne, PA iTB7 George T. Joner Pennsylvania Powa & bght -

MC A6-1 Two North Ninth Street 1

' Allentown, PA 18101 Lewis H.- Sumner Southern Nuclear / Georgia Power E. l. Hatch Nuclear Power Plant 40 Invemess Parkway PO Box 1295 Birmingham,GA 35201

' John Kelly New York Power Authority 14th Floor Mail Stop 14K Centroplex Building 123 Main Street

' White Plains, NY 10601 d

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MEETING WITH BWR OWNERS' GROUP SEPTEMBER 8,1998 j

i NAME AFFILIATION Tom Green General Electric Rocky Sgarro Pennsylvania Power & Light Bill Houston Sequoia Consulting Group Dan Maret Sequoia Consulting Group Barry Barkley PSE&G:

Tom Oldenhage Pennsylvania Power & Light Richard Pistolas Pennsylvania Power & Light George Cornelius Northwest Utilities i

Dana Smith Entergy Operations i

Ted Hilston Cleveland Electric

Pat Tobin Northem States Power Gilbert Zigla ITS Corporation Boyd Stanley CP&L Paul Hansen GPU Nuclear Jim Costedio New York Power Authority 3

Norm Hoy New York Power Authority Jon Arterbum Duke Engineering Steve Huebsch Alliant Utilities /IES Utilities PaulDuke PSE&G Alan Bilanin Continuum Dynamics James Emens Tennessee Valley Authority Ted Ryan PECO Nuclear Les England Entergy Operations Jeff Branum Southern Nuclear Ronnie Cole Entergy Operations Kerri Kavanagh NRC Donna Skay NRC Michael Marshall NRC Stuart Richards.

NRC Rob Elliott NRC l

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